<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<style>
    .clip {
    height: 100%;
    width: 100%;
    background: #f57f17;
    -webkit-clip-path: polygon(0 0, 40% 40%, 50% 86.60254%, 60% 40%, 100% 0, 50% 20%, 0 0);
    clip-path: polygon(0 0, 40% 40%, 50% 86.60254%, 60% 40%, 100% 0, 50% 20%, 0 0);
    -webkit-animation: morph 10s linear infinite;
    animation: morph 10s linear infinite;
}
@-webkit-keyframes morph {
    50% {
        -webkit-clip-path: polygon(0 0, 0 100%, 50% 100%, 100% 100%, 100% 0, 50% 0, 0 0);
        clip-path: polygon(0 0, 0 100%, 50% 100%, 100% 100%, 100% 0, 50% 0, 0 0);
    }
}
@keyframes morph {
    50% {
        -webkit-clip-path: polygon(0 0, 0 100%, 50% 100%, 100% 100%, 100% 0, 50% 0, 0 0);
        clip-path: polygon(0 0, 0 100%, 50% 100%, 100% 100%, 100% 0, 50% 0, 0 0);
    }
}
.outline {
    position: absolute;
    top: 50%;
    left: 50%;
    height: 50vmin;
    width: 50vmin;
    margin: -25vmin;
    -webkit-filter: drop-shadow(-1px 1px 0 #1a237e) drop-shadow(1px 1px 0 #1a237e) drop-shadow(0 1px 0 #1a237e) drop-shadow(1px 0 0 #1a237e) drop-shadow(1px -1px 0 #1a237e) drop-shadow(-1px -1px 0 #1a237e) drop-shadow(0 -1px 0 #1a237e) drop-shadow(-1px 0 0 #1a237e);
    filter: drop-shadow(-1px 1px 0 #1a237e) drop-shadow(1px 1px 0 #1a237e) drop-shadow(0 1px 0 #1a237e) drop-shadow(1px 0 0 #1a237e) drop-shadow(1px -1px 0 #1a237e) drop-shadow(-1px -1px 0 #1a237e) drop-shadow(0 -1px 0 #1a237e) drop-shadow(-1px 0 0 #1a237e);
}
</style>
<body>
    <div class="outline">
        <div class="clip"></div>
    </div>
    <script>
        // var arr1 = [
        //     {
        //         name: 'oy',
        //         age: 23
        //     },
        //     { 
        //         name: 'limont',
        //         age: 24
        //     }
        // ];
        // var arr2 = [
        //     {
        //         name: 'xiyi',
        //         age: 28,
        //     }
        // ];
        // arr3 = [...arr1,...arr2];
        // console.log(arr3)
        
        // console.log(parseFloat((0.1111+0.2).toFixed(3)));
        // console.log(parseFloat(0.1523.toFixed(3)));
        // console.log(0*10 + 3);
        // var now = new Date();
        // var currentSeconds = (parseFloat(now.getHours()))*60*60 + (parseFloat(now.getMinutes()))*60 + parseFloat(now.getSeconds());
        // console.log(currentSeconds);


    </script>
</body>
</html>